JPS6232892B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a bundled culm discharge device for a combine harvester, and more particularly to a discharge device that discharges bundled culms standing in a field with the stock side facing down.

[Conventional technology]

The bundled culm bound by the knotter is conveyed to the rear of the combine harvester with the tip side held between the ears and the base side hanging down, and the bundled culm is dropped from the end of the conveyance so that the bundled culm stands upright in the field. A device with an ejection device has been proposed by the applicants.

[Problems to be solved by the invention]

This bundled culm discharging device has the problem that the combine harvester is traveling on uneven fields and the discharged bundled culms do not stand properly on the field and tend to fall down due to vibrations of the machine. It was hot.

[Means to solve the problem]

The present invention was conceived in view of the above-mentioned circumstances, and includes a rotation guide that is located at the end of the conveyance of the conveyance device, is elastically supported toward the conveyance belt, and is in elastic contact with the bundling culms to apply horizontal rotational force. By providing this, the stock side of the bundled culms to be released is spread out by centrifugal force and released into the field, and the bundled culms are made to stand firmly on the field, and the ground of the bundled culms is The present invention provides a bundled culm discharge device in a combine harvester that promotes the drying effect.

【Example】

Embodiments of the present invention will be specifically described below with reference to the drawings. In the figure, reference numeral 1 denotes the main body of the combine harvester, and a knotter 2 is attached to the rear of the main body 1 to bind and release the threshed culm.Compared to conventional ones, the knotter 2 moves the ejected culm closer to the tip side. A bundled culm discharge device 3 is provided at the rear of the bundle. The bundled culm discharge device 3 supports a conveyance belt 6 made of an endless chain via a stay 5 on a support frame 4 which has one end fixed to the upper part of the knotter 2 and the other end bent and extended to one side at the rear of the machine body. However, the conveyor belt 6 is
Its starting end is seen at the bundling culm release position of the knotter 2, and its terminal end extends to the tip of the support frame 4. In addition, the height of the terminal end of the conveyance belt 6 is inclined upward from the starting end so as to be almost equal to the height of the support frame 4, and the height is such that the bundled culm can be suspended without touching the field. It is set up so that it can be done. At a position facing the conveyance surface of the conveyance belt 6, a strapping rail 7 is supported by the support frame 4, and this strapping rail 7
The tip side of the bundled culm is held between the conveyor band 6 and conveyed. A rotation guide 8 according to the present invention is provided at the end position of the clamping rail 7 and at the end of the transport of the transport band 6, facing the transport surface of the transport 6. This rotation guide 8 contacts the bundled culm which is held and conveyed by the conveyance band 6 and the clamping rail 7 and rotates it in the horizontal direction, as shown in FIG. 2 and FIGS. 4 and 5. Bracket 9 provided on support frame 4
a guide body 12 which is pivotally connected to via a pin 10 and urged toward the conveyance band 6 by a spring 11;
A circular arc portion 12a is formed on the surface of the guide body 12 facing the conveyance belt 6. This arc part 1
2a may have a smooth surface as shown in FIG. 4, or may have a jagged surface as shown in FIGS. 5a and 5b to increase frictional resistance. In addition, the bundled culm discharge device 3 has one end fixed to the proximal end side of the support frame 4, and the other end fixed to the conveying belt 6.
A guide rod 13 is provided extending below the rear end. Further, a discharge guide plate 14 is fixed to the support frame 4 and disposed at the end of the conveyance belt 6 in the direction in which the main body 1 moves. In such a configuration, the waste culm threshed in the threshing section during the harvesting operation of the combine harvester is tied at approximately the middle portion in the length direction of the waste culm by the knotter 2, and is discharged. At this discharge position, the bundled culms are held with their tip sides between the clamping rails 7 and the conveyance belt 6, and are conveyed toward the terminal end of the conveyance belt 6 with the stem side hanging down. During this conveyance process, a pendulum-like swinging force acts on the stock side of the bundled culm due to the running of the machine and vibrations, but this swinging force is regulated by the guide rod 13 and does not swing. Moving. When the tip side of the bundled culm leaves the clamping rail 7 and reaches the rotation guide 8 position, it comes into contact with the circular arc portion 12a of the guide body 12 pressed by the spring 11 against the feeding action of the conveyor belt 6. Rotational force acts in the horizontal direction due to the frictional force of Then, it is released from the rotation guide 12 and falls. Even when it falls, it is guided close to the field by the discharge guide plate 14, so that the bundled culm can be reliably erected in the field. Further, the release guide plate 14 is
Since it is provided on the front side in the direction in which the combine harvester moves, it will not come into contact with and knock down the bundled culms once erected in the field as the combine moves forward.

【Effect of the invention】

As explained above, according to the bundled culm discharge device in a combine harvester according to the present invention, the bundled culm discharge device 3 provided at the bundled culm discharge position of the knotter 2 is located at the conveyance end, and comes into elastic contact with the bundled culm. Since the rotary guide 12 is provided to apply a rotational force in the horizontal direction, the bundled culm transported by the bundled culm discharge device 3 does not fall during transportation, and the bundled culm discharged from the end of the transport does not fall. The culm rotates and falls reliably, and can be placed neatly on the field with the base side spread out, and has good ventilation from the base side to the tip side, and is resistant to wind, etc. It does not fall down easily, and the drying effect of the culm bundles is promoted.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a rear view, FIG. 4 is an enlarged plan view of the main parts, and FIGS. FIG. 7 is a plan view showing another example of the rotation guide. DESCRIPTION OF SYMBOLS 1... Main body of combine, 2... Knotter, 3... Binding culm discharge device, 4... Support frame, 5... Stay, 6... Endless band, 7... Strapping rail, 8... Rotating guide, 9... Bracket, 10... Pin , 11... spring,
DESCRIPTION OF SYMBOLS 12...Guide body, 12a...Circular arc part, 13...Guide rod, 14...Emission guide plate.

Claims (1)

[Scope of Claims] 1. A bundled culm is conveyed to the rear of a combine harvester in a posture in which the tip side is held and the base side hangs down, and the bundled culm is dropped from the end of the conveyance and released into a state where the bundled culm stands upright in the field. The discharge device is provided with a rotation guide located at the end of the conveyance, elastically supported toward the conveyance belt, and elastically contacted with the bundled culm to apply horizontal rotational force. A bundled culm discharge device in a combine harvester, characterized by: